Overview: La Paz River, Vara Blanca, Costa Rica — The crater lake of the Poas Volcano drains from 9,000 feet into this high altitude cloudforest ravine. Stepping downward through a series of five waterfalls, we descend as the sun rises. Rays of light catch suspended water particles from the falling water, as green threads of life cling to sodden cliff walls. From within its pupa, an owl butterfly emerges with the increasing warmth of day, pumping fluid into its silken wings. Through the last rock opening, the water and sun burst out and down towards a restful pool, the famous La Paz waterfall.